fix: use fetchLatestWaWebVersion to prevent 405 connection failures (#443)

Baileys' default WhatsApp version can fall behind when WhatsApp updates
their protocol, causing 405 "Method Not Allowed" errors on the websocket
handshake. This prevents both new authentication and reconnection.

Now fetches the latest version on each connection so it stays current.

Applied to both the runtime connection (whatsapp.ts) and the setup auth
flow (whatsapp-auth.ts).

src/channels/whatsapp.ts

@@ -6,6 +6,7 @@ import makeWASocket, {
   Browsers,
   DisconnectReason,
   WASocket,
+  fetchLatestWaWebVersion,
   makeCacheableSignalKeyStore,
   useMultiFileAuthState,
 } from '@whiskeysockets/baileys';
@@ -55,7 +56,9 @@ export class WhatsAppChannel implements Channel {
 
     const { state, saveCreds } = await useMultiFileAuthState(authDir);
 
+    const { version } = await fetchLatestWaWebVersion({});
     this.sock = makeWASocket({
+      version,
       auth: {
         creds: state.creds,
         keys: makeCacheableSignalKeyStore(state.keys, logger),

src/whatsapp-auth.ts

@@ -15,6 +15,7 @@ import readline from 'readline';
 import makeWASocket, {
   Browsers,
   DisconnectReason,
+  fetchLatestWaWebVersion,
   makeCacheableSignalKeyStore,
   useMultiFileAuthState,
 } from '@whiskeysockets/baileys';
@@ -53,7 +54,9 @@ async function connectSocket(phoneNumber?: string, isReconnect = false): Promise
     process.exit(0);
   }
 
+  const { version } = await fetchLatestWaWebVersion({});
   const sock = makeWASocket({
+    version,
     auth: {
       creds: state.creds,
       keys: makeCacheableSignalKeyStore(state.keys, logger),